The singer, 29, said she had been subjected to vicious attacks, on Twitter and Facebook, for more than a year.

Cheryl spoke about the cyber bullies as she told Grazia magazine that she could relate to the teenagers helped by her charity, The Cheryl Cole Foundation.

"I get what these kids have gone through because I had a tough upbringing and I understand what it feels like to get bullied like some of them," she said of growing up while living on a tough Newcastle council estate.

The former X Factor judge added: "In the last few years, I've been bullied on Facebook and Twitter. It's evil and very public.

"People judge my appearance and hair, and say that I look fat."

Speaking while meeting some of the teenagers that her Foundation has worked with, she told the magazine: "I want to help these young people because I know how it feels to come out on the other side and be someone who achieves."

Earlier this week, TV couple Eamonn Holmes and Ruth Langsford said they have been the targets of internet trolls, while in March, former Blue Peter presenter Richard Bacon said that he has been subjected to online abuse.

The Cheryl Cole Foundation helps The Prince's Trust work with young people in the North East. She said of the Prince of Wales: "The first time I had tea with him at Clarence House, I had an etiquette lesson on how to address him.

"But I forgot to say Prince and just called him Charles, which was embarrassing and someone started coughing at my mistake behind me to correct me. But he couldn't stop laughing," she said.